You need to determine where the trust boundaries will be in a new Company VOIP design. Which two statements are true about these trust boundaries？（） Trust boundaries are configured in the core of the network to provide the most efficient forwarding based upon QoS markings，。 Setting trust boundaries at the edge of the network allows intermediate hop devices to administer QoS policies without detailed packet identification.。 Trust boundaries are used to determine which QoS mechanism will be applied to the traffic. 。 At the trust boundaries， the untrusted traffic will be marked with a new QoS value appropriate for the policy in place at the point where the traffic entered the campus network. 。 Trust boundaries define the firewall rules for QoS admission into a network.。
新生儿复苏给予气囊面罩正压通气正确的是（） 按压频率30~40次/min，氧流量5~10L/min，按压与放松气囊的持续时间比为一比一。 按压频率40~60次/min，氧流量5~10L/min，按压与放松气囊的持续时间比为1：2。 按压频率40~60次/min，氧流量5~10L/min，按压与放松气囊的持续时间比为1：3。 按压频率20~30次/min，氧流量5~10L/min，按压与放松气囊的持续时间比为1：2。 按压频率30~40次/min，氧流量5~10L/min，按压与放松气囊的持续时间比为1：3。
When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.（） PIM sparse - dense。 Bidir - PIM。 PIM - RP。 PIM - DM。 PIM - SM。
党内监督必须把纪律挺在前面，运用监督执纪“四种形态”，经常开展批评和自我批评、约谈函询，让“红红脸、出出汗”成为常态，党纪轻处分、组织调整成为违纪处理的大多数，党纪重处分、重大职务调整的成为少数，严重违纪涉嫌违法立案审查的成为极少数。
塑性变形
安全套接层协议的英文缩写是（）。
